[pure-silver] Re: Grain; Now Digital enlargers
- From: spamoff@xxxxxxx
- To: pure-silver@xxxxxxxxxxxxx
- Date: Fri, 13 Jan 2006 01:46:40 +0000
I enquired of Odysey some time ago about the devere digital enlarger.
One thing that is conspicuous by its absence is any details about the pixel
dimensions of the LCD panel.
If I recall correctly, a 12x16inch print would produce approximately a 200ppi
print. This is not enough ppi for quality to be anywhere near equal to a
traditional monochrome print.
Ask for the lcd array dimensions and calculate what that means in terms of dpi
in the print. Anything less than about 8lp/mm(16 p/mm) means it wont be as good
as a negative projected onto paper. The fact that it moves during printing only
serves to blur the pixelation in the print which will also reduce the
resolutoin in the print.
Tim, if I'm not mistaken you are not too far from Caterham to go down to Odysey
and take a look at one of these machines in action.
I did a recent test of a B+W digital file having it printed on an epson wide
format printer(300dpi), a laser printer(Fuji Crystal Archive paper at 254 dpi)
and a typical highstreet photo LCD projection printer. The LCD print was the
worst by a long way. The Laser print (www.photobox.com) was easily the best.
The inkjet was good but diifferent from a silver gelatin fibre based print. I
think the LCD matrix in the DeVere needs a lot more pixels in it but it really
depends on your own criteria of what is "good enough".
rob champagne
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